Double-rib-knitting machine



Jan. 26,1926. 1,570,775

7 J 5. PECKER DOUBLE RIB KNITTING MACHINE Filed March 50, 1922 v 2 Sheets-Sheet 1 JUL H,

I N V EN TOR. JOSEPH 5. PECKER ATTORNEY.

Jan. 26 1926. I 1,570,775

' J. s. PECKER DOUBLE RIB KNITTING MACHINE Filed March 30, 1922 2 Sheets-Sheet 2 INVEN TOR. JOSEPH 5. PECKER is illustrated the preferred em Patented Jan. 26, 1926.

j UNITED STATES 1,57 ,175 PATENT OFFICE.

' JOSEPH s. PECKEB, or PHILADELPHIA, PENNSYLVANIA.

DOUBLE-RIB-KNITTING MACHINE.

Application filed March 30, 1922. Serial N0. 548,037.

To all whom it may concern:

Be it known thatI, JOSEPH S. PECKER, a citizen of the UnitedStates, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented new and useful Improvements in Double- Rib-Knitting Machines, of which the follow ing is a specification. The invention relates to a double rib knitting machine. f i

The object of the present invention is to provide a simple, practical and eflicient means of strong and durable construction for adjusting the position of the needle bar so that the tips of the needles can' be tilted inwardly towards the center or outwardly away from the center and positively secure in whatever position they are designed or required to occupy.

Another object of the invention is to provide means for adjusting the needle bar in a horizontal direction so that the needles p can be made 'to line up with the thread ides in any desired position. With these and other objects in view the invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings and pointed out in the claims hereto appended, it being understood that various changes in the form, proportion and minor details of construction. within the scope of the claims, may be resorted to without departin from the spirit or sacrificing any of the a vantages of the knitting machine.

Figure 3 is a detail sectional .view on the line 33 of Figure 1.

Figure 4 is an enlarged detail view of one of the cradles of the needle bar.-

Figure 5 is a longitudinal sectional view of the same. v

Figure 6 is an end view of the cradle shown in Figure 4.

Figure 7 is a detail sectional view of the angle needle bar.

In the accompanying dr'awin in which iment of the invention, the frame of the machine comprises standards 1 and 2 tied together by horizonZal cross bars or braces 3 and 4 and provided at the upper and lower portions with vertically aligned guide-ways 5 for the reception of vertically reciprocating staffs 6. The upper and lower guide-ways, as explained in my application for patent, filed January 12,1922, Serial No. 528,776, are spaced apart as far as the construction of the machine will permit in order to afford a firm construction and prevent any pos sibility of shake or vibration of the vertically reciprocating staff 6 in the vertical motion ofthe same at either end of the machine. The vertically reciprocating staffs carry needle bars 7, which are provided with the usual knitting needles 8 and the up and down motion is imparted to the needle bars 7 by cams 9 mounted on the mainoperating shaft, 10 of the machine and actuatincr two airs of rocking levers 11, one side being located at each end of the machine and connected by link connections 13. with the. lower ends of the vertically reciprocating stafis 6. The rocking levers 11 are mounted on short horizontal shafts 14, each journaled in a bearing bracket 16 extending inwardly and upwardly from the baseof the frame and bearings 15 and 15 The rocking levers 11 are located at the inner and outersides of the vertically reciprocating staffs, each.

pair of vertically reciprocating stafis being located betweenthe members of a pair of rocking levers 11.

Each rocking lever 11 is provided at its inner portion with a longitudinal slot 17, in which is mounted a sliding block 18 carrying a pin'or pivot 19 and adjustable longitudinally-in the slot by an adjusting screw 20 journaled in the inner end. of the rocking lever and threaded into the slidable pivot carrying block, as explained in the aforesaid application, whereby when the adjusting screw is rotated the slidable block will be moved inwardly and outwardly with respect to the end of the rocking lever. The link connection between each rocking lever and the vertically reciprocating staif is comthreaded adjusting screw. The upper and I lower sections 21 and 22 are provided with threaded openings or sockets, which are engaged by the right and left hand threaded portions of the connecting member 23 and the latter is provided with a central polyg nal portion adapted to receive a wrench or other suitable tool for rotating the right and left hand threaded adjusting screw or member 23 to vary the effective length of the link connection between the rocking lever and the vertically reciprocating staff. Suitable lock nuts are provided for securing the adjusting screws 253 and the upper and lower sections 21 and 22 in their adjustn'ient.

Each rocking lever 11 is provided at its outer end with a roller 25 which runs in a cam groove 26 inthe cam 9 and the said cam groove, which forms a track for the roller, tends to hold the lever in a firm position at any part of the cam and thereby prevents lost motion and eliminates the necessity of employing spring tensions or weights to prevent such lost motion.

The needle bar. 7, which is in the form of an angle bar, consists of a substantially horizontal flange or wing T and an upwardly extending flange or wing 7" and is carried at each end by a pivoted bracket or cradle 27 secured to the under side of the horizontal flange of the needle bar by bolts 28, or other suitable fastening means. The pivoted bracket or cradle consists of a substantially rectangular body portion and an approximately L-shaped arm 30 (see Figs. 4 and 5) extending outwardly from the body portion and laterally with respect to the needle bar and forming a recess receiving the upper end of the vertically reciprocating stall 6 and bridged by a horizontal pivot 32 piercing the staff 6 and having its terminal portion mounted in a flange 33 ot' the body portion or pivoted bracket or cradle 27 and in the arm 30. The bracket. or cradle is adapted to rock on the pin or pivot 32, which is arranged horizontally and the pivotal or rocking movement enables the needle bar to be adjusted so that the tips of the needles can be tilted inwardly toward the center or outwardly away from the center, as required. Also the recess 31 permits a limited longitudinal adjustment of the needle bar in a horizontal direction, so that the needles can be made to line up with the thread guides in the desired position. The arm of the pivoted bracket or cradle 27 is provided at the laterally extending portion with upper and lower adjusting screws 34 and provided with lock nuts 36 and 37 and mounted in suitable threaded openings in the said arm 30 and arranged to engage the vertically reciprocating sta ft. The needle bar is secured in its longitudinal adjustment by means of an adjusting screw 38, provided with a lock nut 39 and mounted in a threaded opening in the laterally extending portion of the arm 30 and engaging the vertically reciprocating statl' at the outer side thereof. This double adjustment of the eradle or pivoted bracket 27, by means of the said adjusting screws, as clearly illustrated in Figures 4 to 6, inclusive of the drawings.

enables the needle bar to be rigidly held in proper position with relation to the vertically reciprocating statl's after adjustment. The recess 31, formed by the L-shapcd arm and the body portion of the cradle or pivoted bracket 27, may be varied in width to provide for the required amount of longitudi nal adjustment of the needle bar and the horizontal pin or pivot which forms a fulcrum for the cradle or bracket 27 may be secured to the body portion and arm of the cradle or bracket in any desired manner.

The needle bars carry the usual knitting needles 8 and the thread or yarn guides 41 are arranged in separate blocks 42 which are carried by slides 43. The slides 48 are slidably suspended from hangers 44 by horizontal rods 45 slidable in guide members 46 of the said hangers 44 and secured in open ings 47 of blocks 48 by clamping screws 49. The blocks 48 are provided with reduced portions 50, which are secured in openings 51 of the slides 43 by pins or keys 52. The blocks 48 are arranged in pairs and the members of each pair are spaced apart at the end portions of the slide 43. The hangers 44 are constructed substantially the same as described in my co-pe nding application #528,775, tiled January 12, 1922. The horizontal rods 45 are of sullicient length to permit the necessary longitudinal movement of the slides 43. v

The hangers 4t depend from a rocking shaft 53 and the slide 43 is retained in its horizontal motion by upwardly extending arms 54 provided at the top with arcuate portions 57 having curved slots 58, through which extend horizontal pins o9 carried by and extending outwardly from substantially L-shaped brackets 60. The brackets, which are bolted or otherwise secured to the rocking shaft 53, have depending portions through which pass the threaded inner ends 61 of the pins 59. The pins 59, which are provided at their inner ends with thumb nuts 62, are equipped with blocks 63 rectangular in cross section and fitted between and interlocked with spaced lugs or flanges (34 formed integral with and projecting from the depending portions of the bracket 60. Each block is provided with a central opening 65, through which passes the horizontal pin 59 and the block is rigidly secured to the pin by a-key 6 piercingthe block and the pin. The spaced lugs or projections 6-1 provide an intervening recess to receive the polygonal block 63. which is drawn into the recess and tightly clamped against the depending portion of the bracket by the thumb nut 62. The brackets are located at the inner sides of the upwardly extending-arm 68 of a bell crank lever 69 by a yoke 70 slidably mounted on the up- 1 wardl y extending arm of the bell crank lever and secured in its adjustment by a clamping screw 71 having a lock nut 72. The bell crank lever is fulcrumed at its angle on a rod or pivot 73, which is supported at the end by a bearing bracket 7 4. The other arm of the bell crank lever is arranged in a sub stantially horizontal position and is provided with a longitudinal slot 75 inwhich is'slidably mounted a yoke 76 depending from the horizontal arm of the bell crank lever and carrying the roller 68*, which is adjustable along the horizontal arm of the bell crank lever bymeans of an adjusting screw 77 journaled at its outer portion in the outer end of the arm and having its threaded portion extending through and engaged with the yoke 76. The adjusting screw is provided with a polygonal outer end 78 and it has a collar 79 mounted on it and located at the outer end of the longitudinal slot 75. This screw is adapted to be rotated by means of a wrench or other suitable tool, and it provides a fine adjustment for the roller 68, which engages the pattern chain. The slide is moved in one direction by the bell crank lever and it is returned or moved in the opposite directionby a coiled spring (not shown), as fully explained in the aforesaid application. The upper portion of the yoke 76 is provided with flat side faces to fit against the side walls of the longitudinal slot 75 and the upper end 80 of the yoke is reduced to receive a collar 81 which rests upon the face of the horizontal arm of the bell crank lever at opposite sides of the 1 slot 75, being secured to the reduced portion 80 by a cotter pin or key 82. The lower portion of the yoke is enlarged and forms shoulders 83 which fit against the lower face of the horizontal arm of the bell crank lever at opposite sides of the said slot 75. The

68 is mounted-on a suitable pin or -piv'ot 84 which extends across the yoke, as

clearly shown in Figure 6 of the drawings.

The pattern chains are arranged ,on a monitor comprismg end disks orseotions 85,

intermediate toothed plates 86 and interven-' ing spacing plates 87 The disks or sections of the monitor are mounted on a horizontal shaft 88, the end plates being provided with hub portions 89 and having clamping screws 90 for engaging thesaid shaft 88 to secure The teeth of the chain, engaging the disks or wheels, interlock thechain with the said disks or wheels and the said spacer or separator disks or sectionsand the end disks or sections act as retainer plates for the pattern chain. The separable disks .or sections, comprising the monitor, are adapted to be varied in number to enable the monitor to be varied in length to provide a monitor having the required number of pattern chains. The

end disks or sections 85, the intermediate toothed disks or sections 86 and the spacing disks or sections 87 are provided with keyways 97 to enable all of the sections or members of the monitor to be readily alined on the horizontal shaft 88. The toothed disks or plates 86, which constitute sprocket members for engaging the pattern chains, are

adapted to be machined by the standard equipment in present use and the construc tion of the monitor renders it possible to re move worn out sprocket members 86 and to replace the same with new sections or members 86 without discarding the rest of the monitor.

The machine is eT uipped with a tension bar 9-1 mounted in bearing plates which are bolted or otherwise secured to the frame at the ends thereof. The tension bar 94 is arranged so that one of its edges coincides with the center of the machine, as clearly illustrated in Figure 3 of the drawings, and the coinciding or inner edge of the tension bar is located in the direction in which the fabric is stripped oil the needles. The tension bar is adapted to guide the goods from upwardly from the bottom of the said frame,

a needle bar carried by the said stafls, rocking levers located at the ends of the frame at the bottom thereof and extending beneath and connected with the lower ends of the staffs, and means for actuating the levers.

- 2. A knitting machine including a frame provided at the ends with upper and lower vertically aligned guideways, vertically reciprocating staffs operating in the guideways and extending upwardly from the bottom 'of the frame, needle bars carried by the staffs, rocking levers arranged in pairs at the ends of the frame at the bottom there of and connected with the lower ends of'the staffs, and means for actuating the rocking levers.

A knitting machine including a frame having vertical guideways located at the ends of" the frame, vertically reciprocating staffs operating in the guideways and extending upwardly from the bottom of the frame, needle bars carried by the staffs, rocking levers arranged at the ends of the frame at the bottom thereof and located at the inner and outer faces of the staffs and extending beneath and connected with the lower ends of the same, and means for actuating the rocking levers.

at. A knitting machine, including a frame, vertically reciprocating staffs arranged in pairs at the ends of the frame, rocking levers arranged in pairs and also located at the ends of the frame and extending beneath and connected with the lower ends of the staffs, short horizontal shafts forming pivots for the roekinglevers, bearing brackets having inner andouter bearings for the said shafts, and means for actuating the rocking levers.

5. A knitting machine including a frame provided at its ends with upper and lower vertically aligned guideways and vertically reciprocating staffs located at the ends of the frame and operating in the guideways, needle bars carried by the staffs, rocking levers arranged in pairs and located at the bottom of the frame at the ends of the same, the members of the pairs of rocking levers being located at the inner and outer faces of the vertically reciprocating staffs, and cams for actuating the rocking levers.

6. A knitting machine, including a frame, vertically reciprocating staffs, a needle bar, and adjustable cradles mounted on the staffs and carrying the needle bar.

7. A knitting machine, including a frame, vertically reciprocating staffs, a needle bar, and cradles pivotally mounted on and adjustably secured to the staffs and carrying the needle bar.

8. A knitting machine, including a frame, vertically reciprocating staffs, a needle bar, adjustable cradles pivotally mounted on the staffs and carrying the needle bar, and means for slidably adjusting the cradles in a direction longitudinally of the needle bar.

' 9. A knitting machine, including a frame, vertically reciprocating staffs, cradles slidably andpivotally connected to the staffs, a

needle bar carried by the cradles, adjusting screws arranged in pairs for securing the cradles in their pivotal adjustment, and separate adjusting screws for securing the cradles in their sliding adjustment.

10. A knitting machine, including a frame, vertically reciprocating staffs, an angle needle bar carried by the staffs, said angle needle bar having an upwardly extending Web or flange and provided with a substantially horizontal web or flange, and means for adjusting the needle bar with respect to the staffs.

11. A knitting machine, including a frame, vertically reciprocating staffs, a needle bar, and cradles secured to and carrying the needle bar and provided with substantially L-shaped arms embracing the staffs and pivotally connected with the same.

12. A knitting machine, including a frame, vertically reciprocating staffs, an angle needle bar havingan upwardly extending flange and a substantially horizontally extending flange, cradles secured to the under side of the horizontal flange and provided with. substantially L-shaped arms forming recesses receiving the upper ends of the staffs, horizontal pivots slidably and piv.

otally connecting the cradles to the staffs, and means for securing the cradles in pivotal and sliding adjustment.

In testimony whereof I have hereunto set my hand.

JOSEPH S. PECKER. 

